drivers/staging/rtl8712/wifi.h

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * Modifications for inclusion into the Linux staging tree are
  19  * Copyright(c) 2010 Larry Finger. All rights reserved.
  20  *
  21  * Contact information:
  22  * WLAN FAE <wlanfae@realtek.com>
  23  * Larry Finger <Larry.Finger@lwfinger.net>
  24  *
  25  ******************************************************************************/
  26 #ifndef _WIFI_H_
  27 #define _WIFI_H_
  28
  29 #include <linux/compiler.h>
  30
  31 #define WLAN_IEEE_OUI_LEN       3
  32 #define WLAN_CRC_LEN            4
  33 #define WLAN_BSSID_LEN          6
  34 #define WLAN_BSS_TS_LEN         8
  35 #define WLAN_HDR_A3_LEN         24
  36 #define WLAN_HDR_A4_LEN         30
  37 #define WLAN_HDR_A3_QOS_LEN     26
  38 #define WLAN_HDR_A4_QOS_LEN     32
  39 #define WLAN_SSID_MAXLEN        32
  40 #define WLAN_DATA_MAXLEN        2312
  41
  42 #define WLAN_A3_PN_OFFSET       24
  43 #define WLAN_A4_PN_OFFSET       30
  44
  45 #define WLAN_MIN_ETHFRM_LEN     60
  46 #define WLAN_MAX_ETHFRM_LEN     1514
  47
  48 #define P80211CAPTURE_VERSION   0x80211001
  49
  50 enum WIFI_FRAME_TYPE {
  51         WIFI_MGT_TYPE  =        (0),
  52         WIFI_CTRL_TYPE =        (BIT(2)),
  53         WIFI_DATA_TYPE =        (BIT(3)),
  54         WIFI_QOS_DATA_TYPE      = (BIT(7)|BIT(3)),      /*!< QoS Data */
  55 };
  56
  57 enum WIFI_FRAME_SUBTYPE {
  58         /* below is for mgt frame */
  59         WIFI_ASSOCREQ       = (0 | WIFI_MGT_TYPE),
  60         WIFI_ASSOCRSP       = (BIT(4) | WIFI_MGT_TYPE),
  61         WIFI_REASSOCREQ     = (BIT(5) | WIFI_MGT_TYPE),
  62         WIFI_REASSOCRSP     = (BIT(5) | BIT(4) | WIFI_MGT_TYPE),
  63         WIFI_PROBEREQ       = (BIT(6) | WIFI_MGT_TYPE),
  64         WIFI_PROBERSP       = (BIT(6) | BIT(4) | WIFI_MGT_TYPE),
  65         WIFI_BEACON         = (BIT(7) | WIFI_MGT_TYPE),
  66         WIFI_ATIM           = (BIT(7) | BIT(4) | WIFI_MGT_TYPE),
  67         WIFI_DISASSOC       = (BIT(7) | BIT(5) | WIFI_MGT_TYPE),
  68         WIFI_AUTH           = (BIT(7) | BIT(5) | BIT(4) | WIFI_MGT_TYPE),
  69         WIFI_DEAUTH         = (BIT(7) | BIT(6) | WIFI_MGT_TYPE),
  70         WIFI_ACTION         = (BIT(7) | BIT(6) | BIT(4) | WIFI_MGT_TYPE),
  71         /* below is for control frame */
  72         WIFI_PSPOLL         = (BIT(7) | BIT(5) | WIFI_CTRL_TYPE),
  73         WIFI_RTS            = (BIT(7) | BIT(5) | BIT(4) | WIFI_CTRL_TYPE),
  74         WIFI_CTS            = (BIT(7) | BIT(6) | WIFI_CTRL_TYPE),
  75         WIFI_ACK            = (BIT(7) | BIT(6) | BIT(4) | WIFI_CTRL_TYPE),
  76         WIFI_CFEND          = (BIT(7) | BIT(6) | BIT(5) | WIFI_CTRL_TYPE),
  77         WIFI_CFEND_CFACK = (BIT(7) | BIT(6) | BIT(5) | BIT(4) | WIFI_CTRL_TYPE),
  78         /* below is for data frame */
  79         WIFI_DATA           = (0 | WIFI_DATA_TYPE),
  80         WIFI_DATA_CFACK     = (BIT(4) | WIFI_DATA_TYPE),
  81         WIFI_DATA_CFPOLL    = (BIT(5) | WIFI_DATA_TYPE),
  82         WIFI_DATA_CFACKPOLL = (BIT(5) | BIT(4) | WIFI_DATA_TYPE),
  83         WIFI_DATA_NULL      = (BIT(6) | WIFI_DATA_TYPE),
  84         WIFI_CF_ACK         = (BIT(6) | BIT(4) | WIFI_DATA_TYPE),
  85         WIFI_CF_POLL        = (BIT(6) | BIT(5) | WIFI_DATA_TYPE),
  86         WIFI_CF_ACKPOLL     = (BIT(6) | BIT(5) | BIT(4) | WIFI_DATA_TYPE),
  87 };
  88
  89 enum WIFI_REASON_CODE   {
  90         _RSON_RESERVED_                 = 0,
  91         _RSON_UNSPECIFIED_              = 1,
  92         _RSON_AUTH_NO_LONGER_VALID_     = 2,
  93         _RSON_DEAUTH_STA_LEAVING_       = 3,
  94         _RSON_INACTIVITY_               = 4,
  95         _RSON_UNABLE_HANDLE_            = 5,
  96         _RSON_CLS2_                     = 6,
  97         _RSON_CLS3_                     = 7,
  98         _RSON_DISAOC_STA_LEAVING_       = 8,
  99         _RSON_ASOC_NOT_AUTH_            = 9,
 100         /* WPA reason */
 101         _RSON_INVALID_IE_               = 13,
 102         _RSON_MIC_FAILURE_              = 14,
 103         _RSON_4WAY_HNDSHK_TIMEOUT_      = 15,
 104         _RSON_GROUP_KEY_UPDATE_TIMEOUT_ = 16,
 105         _RSON_DIFF_IE_                  = 17,
 106         _RSON_MLTCST_CIPHER_NOT_VALID_  = 18,
 107         _RSON_UNICST_CIPHER_NOT_VALID_  = 19,
 108         _RSON_AKMP_NOT_VALID_           = 20,
 109         _RSON_UNSUPPORT_RSNE_VER_       = 21,
 110         _RSON_INVALID_RSNE_CAP_         = 22,
 111         _RSON_IEEE_802DOT1X_AUTH_FAIL_  = 23,
 112         /* below are Realtek definitions */
 113         _RSON_PMK_NOT_AVAILABLE_        = 24,
 114 };
 115
 116 enum WIFI_STATUS_CODE {
 117         _STATS_SUCCESSFUL_              = 0,
 118         _STATS_FAILURE_                 = 1,
 119         _STATS_CAP_FAIL_                = 10,
 120         _STATS_NO_ASOC_                 = 11,
 121         _STATS_OTHER_                   = 12,
 122         _STATS_NO_SUPP_ALG_             = 13,
 123         _STATS_OUT_OF_AUTH_SEQ_         = 14,
 124         _STATS_CHALLENGE_FAIL_          = 15,
 125         _STATS_AUTH_TIMEOUT_            = 16,
 126         _STATS_UNABLE_HANDLE_STA_       = 17,
 127         _STATS_RATE_FAIL_               = 18,
 128 };
 129
 130 enum WIFI_REG_DOMAIN {
 131         DOMAIN_FCC      = 1,
 132         DOMAIN_IC       = 2,
 133         DOMAIN_ETSI     = 3,
 134         DOMAIN_SPAIN    = 4,
 135         DOMAIN_FRANCE   = 5,
 136         DOMAIN_MKK      = 6,
 137         DOMAIN_ISRAEL   = 7,
 138         DOMAIN_MKK1     = 8,
 139         DOMAIN_MKK2     = 9,
 140         DOMAIN_MKK3     = 10,
 141         DOMAIN_MAX
 142 };
 143
 144 #define _TO_DS_         BIT(8)
 145 #define _FROM_DS_       BIT(9)
 146 #define _MORE_FRAG_     BIT(10)
 147 #define _RETRY_         BIT(11)
 148 #define _PWRMGT_        BIT(12)
 149 #define _MORE_DATA_     BIT(13)
 150 #define _PRIVACY_       BIT(14)
 151 #define _ORDER_         BIT(15)
 152
 153 #define SetToDs(pbuf) ({ \
 154         *(unsigned short *)(pbuf) |= cpu_to_le16(_TO_DS_); \
 155 })
 156
 157 #define GetToDs(pbuf)   (((*(unsigned short *)(pbuf)) & \
 158                         le16_to_cpu(_TO_DS_)) != 0)
 159
 160 #define ClearToDs(pbuf) ({ \
 161         *(unsigned short *)(pbuf) &= (~cpu_to_le16(_TO_DS_)); \
 162 })
 163
 164 #define SetFrDs(pbuf) ({ \
 165         *(unsigned short *)(pbuf) |= cpu_to_le16(_FROM_DS_); \
 166 })
 167
 168 #define GetFrDs(pbuf)   (((*(unsigned short *)(pbuf)) & \
 169                         le16_to_cpu(_FROM_DS_)) != 0)
 170
 171 #define ClearFrDs(pbuf) ({ \
 172         *(unsigned short *)(pbuf) &= (~cpu_to_le16(_FROM_DS_)); \
 173 })
 174
 175 #define get_tofr_ds(pframe)     ((GetToDs(pframe) << 1) | GetFrDs(pframe))
 176
 177
 178 #define SetMFrag(pbuf) ({ \
 179         *(unsigned short *)(pbuf) |= cpu_to_le16(_MORE_FRAG_); \
 180 })
 181
 182 #define GetMFrag(pbuf)  (((*(unsigned short *)(pbuf)) & \
 183                         le16_to_cpu(_MORE_FRAG_)) != 0)
 184
 185 #define ClearMFrag(pbuf) ({ \
 186         *(unsigned short *)(pbuf) &= (~cpu_to_le16(_MORE_FRAG_)); \
 187 })
 188
 189 #define SetRetry(pbuf) ({ \
 190         *(unsigned short *)(pbuf) |= cpu_to_le16(_RETRY_); \
 191 })
 192
 193 #define GetRetry(pbuf)  (((*(unsigned short *)(pbuf)) & \
 194                         le16_to_cpu(_RETRY_)) != 0)
 195
 196 #define ClearRetry(pbuf) ({ \
 197         *(unsigned short *)(pbuf) &= (~cpu_to_le16(_RETRY_)); \
 198 })
 199
 200 #define SetPwrMgt(pbuf) ({ \
 201         *(unsigned short *)(pbuf) |= cpu_to_le16(_PWRMGT_); \
 202 })
 203
 204 #define GetPwrMgt(pbuf) (((*(unsigned short *)(pbuf)) & \
 205                         le16_to_cpu(_PWRMGT_)) != 0)
 206
 207 #define ClearPwrMgt(pbuf) ({ \
 208         *(unsigned short *)(pbuf) &= (~cpu_to_le16(_PWRMGT_)); \
 209 })
 210
 211 #define SetMData(pbuf) ({ \
 212         *(unsigned short *)(pbuf) |= cpu_to_le16(_MORE_DATA_); \
 213 })
 214
 215 #define GetMData(pbuf)  (((*(unsigned short *)(pbuf)) & \
 216                         le16_to_cpu(_MORE_DATA_)) != 0)
 217
 218 #define ClearMData(pbuf) ({ \
 219         *(unsigned short *)(pbuf) &= (~cpu_to_le16(_MORE_DATA_)); \
 220 })
 221
 222 #define SetPrivacy(pbuf) ({ \
 223         *(unsigned short *)(pbuf) |= cpu_to_le16(_PRIVACY_); \
 224 })
 225
 226 #define GetPrivacy(pbuf)        (((*(unsigned short *)(pbuf)) & \
 227                                 le16_to_cpu(_PRIVACY_)) != 0)
 228
 229 #define GetOrder(pbuf)  (((*(unsigned short *)(pbuf)) & \
 230                         le16_to_cpu(_ORDER_)) != 0)
 231
 232 #define GetFrameType(pbuf)      (le16_to_cpu(*(unsigned short *)(pbuf)) & \
 233                                 (BIT(3) | BIT(2)))
 234
 235 #define SetFrameType(pbuf, type)        \
 236         do {    \
 237                 *(unsigned short *)(pbuf) &= cpu_to_le16(~(BIT(3) | \
 238                 BIT(2))); \
 239                 *(unsigned short *)(pbuf) |= cpu_to_le16(type); \
 240         } while (0)
 241
 242 #define GetFrameSubType(pbuf)   (cpu_to_le16(*(unsigned short *)(pbuf)) & \
 243                                 (BIT(7) | BIT(6) | BIT(5) | BIT(4) | BIT(3) | \
 244                                 BIT(2)))
 245
 246 #define SetFrameSubType(pbuf, type) \
 247         do {    \
 248                 *(unsigned short *)(pbuf) &= cpu_to_le16(~(BIT(7) | BIT(6) | \
 249                 BIT(5) | BIT(4) | BIT(3) | BIT(2))); \
 250                 *(unsigned short *)(pbuf) |= cpu_to_le16(type); \
 251         } while (0)
 252
 253 #define GetSequence(pbuf)       (cpu_to_le16(*(unsigned short *)\
 254                                 ((addr_t)(pbuf) + 22)) >> 4)
 255
 256 #define GetFragNum(pbuf)        (cpu_to_le16(*(unsigned short *)((addr_t)\
 257                                 (pbuf) + 22)) & 0x0f)
 258
 259 #define SetSeqNum(pbuf, num) ({ \
 260         *(unsigned short *)((addr_t)(pbuf) + 22) = \
 261         ((*(unsigned short *)((addr_t)(pbuf) + 22)) & \
 262         le16_to_cpu((unsigned short)0x000f)) | \
 263         le16_to_cpu((unsigned short)(0xfff0 & (num << 4))); \
 264 })
 265
 266 #define SetDuration(pbuf, dur) ({ \
 267         *(unsigned short *)((addr_t)(pbuf) + 2) |= \
 268         cpu_to_le16(0xffff & (dur)); \
 269 })
 270
 271 #define SetPriority(pbuf, tid) ({ \
 272         *(unsigned short *)(pbuf) |= cpu_to_le16(tid & 0xf); \
 273 })
 274
 275 #define GetPriority(pbuf)       ((le16_to_cpu(*(unsigned short *)(pbuf))) & 0xf)
 276
 277 #define SetAckpolicy(pbuf, ack) ({ \
 278         *(unsigned short *)(pbuf) |= cpu_to_le16((ack & 3) << 5); \
 279 })
 280
 281 #define GetAckpolicy(pbuf) (((le16_to_cpu(*(unsigned short *)pbuf)) >> 5) & 0x3)
 282
 283 #define GetAMsdu(pbuf) (((le16_to_cpu(*(unsigned short *)pbuf)) >> 7) & 0x1)
 284
 285 #define GetAid(pbuf)    (cpu_to_le16(*(unsigned short *)((addr_t)(pbuf) + 2)) \
 286                         & 0x3fff)
 287
 288 #define GetAddr1Ptr(pbuf)       ((unsigned char *)((addr_t)(pbuf) + 4))
 289
 290 #define GetAddr2Ptr(pbuf)       ((unsigned char *)((addr_t)(pbuf) + 10))
 291
 292 #define GetAddr3Ptr(pbuf)       ((unsigned char *)((addr_t)(pbuf) + 16))
 293
 294 #define GetAddr4Ptr(pbuf)       ((unsigned char *)((addr_t)(pbuf) + 24))
 295
 296
 297
 298 static inline int IS_MCAST(unsigned char *da)
 299 {
 300         if ((*da) & 0x01)
 301                 return true;
 302         else
 303                 return false;
 304 }
 305
 306
 307 static inline unsigned char *get_da(unsigned char *pframe)
 308 {
 309         unsigned char   *da;
 310         unsigned int    to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
 311
 312         switch (to_fr_ds) {
 313         case 0x00:      /* ToDs=0, FromDs=0 */
 314                 da = GetAddr1Ptr(pframe);
 315                 break;
 316         case 0x01:      /* ToDs=0, FromDs=1 */
 317                 da = GetAddr1Ptr(pframe);
 318                 break;
 319         case 0x02:      /* ToDs=1, FromDs=0 */
 320                 da = GetAddr3Ptr(pframe);
 321                 break;
 322         default:        /* ToDs=1, FromDs=1 */
 323                 da = GetAddr3Ptr(pframe);
 324                 break;
 325         }
 326         return da;
 327 }
 328
 329
 330 static inline unsigned char *get_sa(unsigned char *pframe)
 331 {
 332         unsigned char   *sa;
 333         unsigned int    to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
 334
 335         switch (to_fr_ds) {
 336         case 0x00:      /* ToDs=0, FromDs=0 */
 337                 sa = GetAddr2Ptr(pframe);
 338                 break;
 339         case 0x01:      /* ToDs=0, FromDs=1 */
 340                 sa = GetAddr3Ptr(pframe);
 341                 break;
 342         case 0x02:      /* ToDs=1, FromDs=0 */
 343                 sa = GetAddr2Ptr(pframe);
 344                 break;
 345         default:        /* ToDs=1, FromDs=1 */
 346                 sa = GetAddr4Ptr(pframe);
 347                 break;
 348         }
 349
 350         return sa;
 351 }
 352
 353 static inline unsigned char *get_hdr_bssid(unsigned char *pframe)
 354 {
 355         unsigned char   *sa;
 356         unsigned int    to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
 357
 358         switch (to_fr_ds) {
 359         case 0x00:      /* ToDs=0, FromDs=0 */
 360                 sa = GetAddr3Ptr(pframe);
 361                 break;
 362         case 0x01:      /* ToDs=0, FromDs=1 */
 363                 sa = GetAddr2Ptr(pframe);
 364                 break;
 365         case 0x02:      /* ToDs=1, FromDs=0 */
 366                 sa = GetAddr1Ptr(pframe);
 367                 break;
 368         default:        /* ToDs=1, FromDs=1 */
 369                 sa = NULL;
 370                 break;
 371         }
 372         return sa;
 373 }
 374
 375
 376
 377 /*-----------------------------------------------------------------------------
 378                         Below is for the security related definition
 379  *-----------------------------------------------------------------------------
 380  */
 381 #define _RESERVED_FRAME_TYPE_   0
 382 #define _SKB_FRAME_TYPE_        2
 383 #define _PRE_ALLOCMEM_          1
 384 #define _PRE_ALLOCHDR_          3
 385 #define _PRE_ALLOCLLCHDR_       4
 386 #define _PRE_ALLOCICVHDR_       5
 387 #define _PRE_ALLOCMICHDR_       6
 388
 389 #define _SIFSTIME_              ((priv->pmib->BssType.net_work_type & \
 390                                 WIRELESS_11A) ? 16 : 10)
 391 #define _ACKCTSLNG_             14      /*14 bytes long, including crclng */
 392 #define _CRCLNG_                4
 393
 394 #define _ASOCREQ_IE_OFFSET_     4       /* excluding wlan_hdr */
 395 #define _ASOCRSP_IE_OFFSET_     6
 396 #define _REASOCREQ_IE_OFFSET_   10
 397 #define _REASOCRSP_IE_OFFSET_   6
 398 #define _PROBEREQ_IE_OFFSET_    0
 399 #define _PROBERSP_IE_OFFSET_    12
 400 #define _AUTH_IE_OFFSET_        6
 401 #define _DEAUTH_IE_OFFSET_      0
 402 #define _BEACON_IE_OFFSET_      12
 403
 404 #define _FIXED_IE_LENGTH_       _BEACON_IE_OFFSET_
 405
 406 #define _SSID_IE_               0
 407 #define _SUPPORTEDRATES_IE_     1
 408 #define _DSSET_IE_              3
 409 #define _IBSS_PARA_IE_          6
 410 #define _ERPINFO_IE_            42
 411 #define _EXT_SUPPORTEDRATES_IE_ 50
 412
 413 #define _HT_CAPABILITY_IE_      45
 414 #define _HT_EXTRA_INFO_IE_      61
 415 #define _HT_ADD_INFO_IE_        61 /* _HT_EXTRA_INFO_IE_ */
 416
 417 #define _VENDOR_SPECIFIC_IE_    221
 418
 419 #define _RESERVED47_            47
 420
 421
 422 /* ---------------------------------------------------------------------------
 423                                         Below is the fixed elements...
 424  * ---------------------------------------------------------------------------
 425  */
 426 #define _AUTH_ALGM_NUM_                 2
 427 #define _AUTH_SEQ_NUM_                  2
 428 #define _BEACON_ITERVAL_                2
 429 #define _CAPABILITY_                    2
 430 #define _CURRENT_APADDR_                6
 431 #define _LISTEN_INTERVAL_               2
 432 #define _RSON_CODE_                             2
 433 #define _ASOC_ID_                               2
 434 #define _STATUS_CODE_                   2
 435 #define _TIMESTAMP_                             8
 436
 437 #define AUTH_ODD_TO                             0
 438 #define AUTH_EVEN_TO                    1
 439
 440 #define WLAN_ETHCONV_ENCAP              1
 441 #define WLAN_ETHCONV_RFC1042    2
 442 #define WLAN_ETHCONV_8021h              3
 443
 444 #define cap_ESS BIT(0)
 445 #define cap_IBSS BIT(1)
 446 #define cap_CFPollable BIT(2)
 447 #define cap_CFRequest BIT(3)
 448 #define cap_Privacy BIT(4)
 449 #define cap_ShortPremble BIT(5)
 450
 451 /*-----------------------------------------------------------------------------
 452                                 Below is the definition for 802.11i / 802.1x
 453  *------------------------------------------------------------------------------
 454  */
 455 #define _IEEE8021X_MGT_                 1       /*WPA */
 456 #define _IEEE8021X_PSK_                 2       /* WPA with pre-shared key */
 457
 458 /*-----------------------------------------------------------------------------
 459                                 Below is the definition for WMM
 460  *------------------------------------------------------------------------------
 461  */
 462 #define _WMM_IE_Length_                         7  /* for WMM STA */
 463 #define _WMM_Para_Element_Length_               24
 464
 465
 466 /*-----------------------------------------------------------------------------
 467                                 Below is the definition for 802.11n
 468  *------------------------------------------------------------------------------
 469  */
 470
 471 /* block-ack parameters */
 472 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
 473 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
 474 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
 475 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
 476 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
 477
 478 #define SetOrderBit(pbuf) ({ \
 479         *(unsigned short *)(pbuf) |= cpu_to_le16(_ORDER_); \
 480 })
 481
 482 #define GetOrderBit(pbuf)       (((*(unsigned short *)(pbuf)) & \
 483                                 le16_to_cpu(_ORDER_)) != 0)
 484
 485
 486 /**
 487  * struct ieee80211_bar - HT Block Ack Request
 488  *
 489  * This structure refers to "HT BlockAckReq" as
 490  * described in 802.11n draft section 7.2.1.7.1
 491  */
 492 struct ieee80211_bar {
 493         unsigned short frame_control;
 494         unsigned short duration;
 495         unsigned char ra[6];
 496         unsigned char ta[6];
 497         unsigned short control;
 498         unsigned short start_seq_num;
 499 } __packed;
 500
 501 /* 802.11 BAR control masks */
 502 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL     0x0000
 503 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA  0x0004
 504
 505
 506  /**
 507  * struct ieee80211_ht_cap - HT capabilities
 508  *
 509  * This structure refers to "HT capabilities element" as
 510  * described in 802.11n draft section 7.3.2.52
 511  */
 512
 513 struct ieee80211_ht_cap {
 514         unsigned short  cap_info;
 515         unsigned char   ampdu_params_info;
 516         unsigned char   supp_mcs_set[16];
 517         unsigned short  extended_ht_cap_info;
 518         unsigned int            tx_BF_cap_info;
 519         unsigned char          antenna_selection_info;
 520 } __packed;
 521
 522 /**
 523  * struct ieee80211_ht_cap - HT additional information
 524  *
 525  * This structure refers to "HT information element" as
 526  * described in 802.11n draft section 7.3.2.53
 527  */
 528 struct ieee80211_ht_addt_info {
 529         unsigned char   control_chan;
 530         unsigned char           ht_param;
 531         unsigned short  operation_mode;
 532         unsigned short  stbc_param;
 533         unsigned char           basic_set[16];
 534 } __packed;
 535
 536 /* 802.11n HT capabilities masks */
 537 #define IEEE80211_HT_CAP_SUP_WIDTH              0x0002
 538 #define IEEE80211_HT_CAP_SM_PS                  0x000C
 539 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
 540 #define IEEE80211_HT_CAP_SGI_20                 0x0020
 541 #define IEEE80211_HT_CAP_SGI_40                 0x0040
 542 #define IEEE80211_HT_CAP_TX_STBC                        0x0080
 543 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
 544 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
 545 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
 546 /* 802.11n HT capability AMPDU settings */
 547 #define IEEE80211_HT_CAP_AMPDU_FACTOR           0x03
 548 #define IEEE80211_HT_CAP_AMPDU_DENSITY          0x1C
 549 /* 802.11n HT capability MSC set */
 550 #define IEEE80211_SUPP_MCS_SET_UEQM             4
 551 #define IEEE80211_HT_CAP_MAX_STREAMS            4
 552 #define IEEE80211_SUPP_MCS_SET_LEN              10
 553 /* maximum streams the spec allows */
 554 #define IEEE80211_HT_CAP_MCS_TX_DEFINED         0x01
 555 #define IEEE80211_HT_CAP_MCS_TX_RX_DIFF         0x02
 556 #define IEEE80211_HT_CAP_MCS_TX_STREAMS         0x0C
 557 #define IEEE80211_HT_CAP_MCS_TX_UEQM            0x10
 558 /* 802.11n HT IE masks */
 559 #define IEEE80211_HT_IE_CHA_SEC_OFFSET          0x03
 560 #define IEEE80211_HT_IE_CHA_SEC_NONE            0x00
 561 #define IEEE80211_HT_IE_CHA_SEC_ABOVE           0x01
 562 #define IEEE80211_HT_IE_CHA_SEC_BELOW           0x03
 563 #define IEEE80211_HT_IE_CHA_WIDTH               0x04
 564 #define IEEE80211_HT_IE_HT_PROTECTION           0x0003
 565 #define IEEE80211_HT_IE_NON_GF_STA_PRSNT        0x0004
 566 #define IEEE80211_HT_IE_NON_HT_STA_PRSNT        0x0010
 567
 568 /* block-ack parameters */
 569 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
 570 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
 571 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
 572 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
 573 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
 574
 575 /*
 576  * A-PMDU buffer sizes
 577  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
 578  */
 579 #define IEEE80211_MIN_AMPDU_BUF 0x8
 580 #define IEEE80211_MAX_AMPDU_BUF 0x40
 581
 582
 583 /* Spatial Multiplexing Power Save Modes */
 584 #define WLAN_HT_CAP_SM_PS_STATIC                0
 585 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
 586 #define WLAN_HT_CAP_SM_PS_INVALID       2
 587 #define WLAN_HT_CAP_SM_PS_DISABLED      3
 588
 589 #endif /* _WIFI_H_ */
 590